I buy in to the idea of what they're selling - used goods arbitrage - they're just selling another form of a "get rich scheme". Follow the money.
If this niche were so great then the proprietors would keep this software platform to themselves to identify the opportunities and perform the work. Instead, they "offer" you the opportunity while they take in a $39 monthly fee for their service.
That's my take on almost the entire industry of "make money doing X, just use my service or take my course!" Bro, the real money is conning these suckers.
A fool and his money will soon part ways.